An inhale valve, what’s the logic they’re, protect others but allow you to suck everyone’s virus in
There was recent studies showing the exhale valves mask for the N95 or K** protection of others is still better than gators and a lot of crap masks people are using.
You still spew droplets but is is directional and still a large portion of your exhale still goes thru far better filtration than most of the other masks.
Like a condom, practice safe outings and wear a mask!